| 单词 | known quantity |
| 释义 | Definition of known quantity in English:known quantitynoun
OriginEarly 18th century. Definition of known quantity in US English:known quantitynoun
OriginEarly 18th century. |
| 随便看 |
|
英语词典包含464360条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。